It's confusing so here goes:
If the senior father is still alive you can name the new son with a third on end. It would go like; John Henry Smith, III ( third)
Junior denotes direct descent, as from a father to a son. "Second" is indirect descent, i.e., being named after the uncle or grandfather.
I am a 2nd and not a junior. I have the same name as my Grandfather. If I were to have the same name as my father I would be a junior. If I give my son the same as myself he would be a junior and a 3rd.
If the son's name is exactly the same as his father's (first, middle and last) then he may be called "Junior", or he could use "the Second" if he prefers. There is no requirement that he use either suffix.
Yes, you can call your son "Junior" if you are the 2nd. Your son would also be also the 3rd. Presumably your father, the 1st, is no longer living so you are the "Senior." If your father is the 1st and is still living, then he is the "Senior" and you are the "Junior." You and your son cannot both be "Junior" at the same time.
Junior is used to distinguish a father from son when their names are completely identical.
The son "Clayton Adams" would not be a Junior or the Second. The Grandson "Clayton David" would not be the 3rd. And the reason for this is because in order for the son to be name a Junior or 2nd he would have to be named after his father which he is not. And the grandson would have to be named after his grand father and father as he is not. Yes,they may all share the same FIRST NAME,but they all three have DIFFERENT MIDDLE NAMES. In order to name Clayton Lancing's son Clayton Adams a Junior or 2nd,Clayton Adams middle name would also have to be Lancing as well as Clayton David to be the 3rd.
Senior- for the father Junior- for the son III- for the grandson
A male is considered a junior when the son's name is exactly the same as the father's name. For example, William Joseph Anderson (father), and William Joseph Anderson Jr. (son).
He is junior, as in Henry Jones Jr.
Junior
If your son is named after his father, he can be called a "junior" if he shares the exact same first, middle, and last name. If he shares the first and last name but not the middle name, he would be referred to as "II" (the second).